get yourself a trip in the CSB and raiders down the shat, as the ops show off and jump each others wakes a considerable amount of dubious brown water will slosh around soaking your boots, 10 mins in the sun later they will dry nice and hard and brittle, crack and split in ten places.

you can then spend 4 weeks trying to get them exchanged whilst getting boots full of sand at every opportunity through the gaping holes around your toe caps